CN202573774U - Driving system of double-hub motor rear-driving electric automobile - Google Patents
Driving system of double-hub motor rear-driving electric automobile Download PDFInfo
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- CN202573774U CN202573774U CN 201220126105 CN201220126105U CN202573774U CN 202573774 U CN202573774 U CN 202573774U CN 201220126105 CN201220126105 CN 201220126105 CN 201220126105 U CN201220126105 U CN 201220126105U CN 202573774 U CN202573774 U CN 202573774U
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Abstract
The utility model provides a driving system of a double-hub motor rear-driving electric automobile, belonging to the technical field of automobiles. The driving system of the double-hub motor rear-driving electric automobile solves the problems of complex structure, high device cost and great demand on the whole arrangement space in the prior art. The driving system of the double-hub motor rear-driving electric automobile comprises a high-voltage battery pack, an automobile controller, a battery management system and two rear wheel hub motors, wherein the high-voltage battery pack is connected with the two rear wheel hub motors through a motor controller; the automobile controller is connected with the motor controller and the battery management system respectively through CAN (Controller Area Network) buses; the automobile controller is connected with a steering wheel corner sensor, an accelerator pedal sensor, a brake pedal sensor and a vehicle speed sensor; and the battery management system is connected with the high-voltage battery pack. The driving system of the double-hub motor rear-driving electric automobile, disclosed by the utility model, has the advantages of simple structure, low device cost and high control precision.
Description
Technical field
The utility model belongs to the electric vehicle engineering field, relates to the drive system of drive electric automobile behind a kind of double wheel hub motor.
Background technology
At present; Had many electronlmobils to come out and put into operation, and existing electronlmobil major part is on the basis of traditional combustion engine automobile, to convert, most ofly adopt single motor-driven; The centralized driving form that promptly replaces driving engine with a motor; This structure and traditional fuel-engined vehicle are similar, and power is sent along change-speed box, transmission shaft, diff, semiaxis by motor and is delivered to wheel, and powered vehicle is advanced; And the transmission device of this structure is complicated, is easy to generate problems such as vibrations, noise.And adopt the wheel hub motor structure can remove power train part such as complicated transmission system, mechanical differential gear box, semiaxis, not only simplify chassis structure, and reduced complete vehicle quality; Improve driving efficiency, helped to improve the continuous driving mileage of electronlmobil, simultaneously; Adopt the wheel hub motor independent drive, can reduce the single motor size, it is more reasonable that complete vehicle quality is distributed; And reduced the height of car load base plate, and be particularly useful for the operation of urban area, be the new direction of electronlmobil development.
The performance of car load directly depends on the performance of drive motor and controller.In the prior electric driving skills art, drive motor generally adopts the brshless DC motor of low asynchronous dynamo of power density or control accuracy difference, makes that the car load driveability of automobile is not ideal enough; And the prior motor controller adopts TMS320F2407 as control chip, poor-performing.
Generally speaking, according to the control priority principle, every motor should be joined a controller.Like the disclosed intelligent drive platform for four wheels of electric automobile of Chinese patent document CN102198802A; It comprises wheel hub motor, electric machine controller, electrokinetic cell, CAN communication network and entire car controller; Wherein wheel hub motor and electric machine controller are 4, and power supply all is connected with electrokinetic cell wheel hub motor with electric machine controller; Entire car controller is controlled 4 electric machine controllers respectively through the CAN communication network.The disclosed a kind of four wheels of electric automobile wheel hub motor drive system of Chinese patent document CN101767542A and for example, it is made up of entire car controller, electrokinetic cell, front-wheel electric machine controller, front-wheel electric machine controller, trailing wheel electric machine controller, trailing wheel electric machine controller, front-wheel hub motor, front-wheel hub motor, rear wheel hub motors, rear wheel hub motors, front-wheel E-Diff, front-wheel E-Diff, trailing wheel E-Diff, trailing wheel E-Diff, 96-12DC-DC charger.All adopt each wheel hub motor all to be equipped with the mode of a motor special controller in above-mentioned two disclosed technical schemes of patent documentation, device cost is high, and car load arrangement space demand is high and inconvenient.
Summary of the invention
There are the problems referred to above in the utility model to existing technology; The drive system of drive electric automobile behind a kind of double wheel hub motor has been proposed; The drive system of drive electric automobile can improve power density and control accuracy behind this double wheel hub motor; Practice thrift the components and parts cost and save the car load arrangement space, and improve the drive axle integrated level.
The utility model is realized through following technical proposal: the drive system of drive electric automobile behind a kind of double wheel hub motor; Comprise the high-tension battery group; It is characterized in that; This drive system also comprises an entire car controller, battery management system and two rear wheel hub motors, is connected through an electric machine controller between high-tension battery group and two rear wheel hub motors; Described entire car controller and electric machine controller, battery management system are respectively through the total wire joint of CAN; Be connected with steering wheel angle sensor, accelerator pedal sensor, brake pedal sensor and car speed sensor on the described entire car controller; Described battery management system is connected with the high-tension battery group, is used to control the high-tension battery group to the electric machine controller charge and discharge, manages information such as battery temperature, electric current, voltage simultaneously; The signal that described entire car controller is carried according to steering wheel angle sensor, accelerator pedal sensor and brake pedal sensor sends instruction to electric machine controller after treatment, and electric machine controller is accepted instruction and controlled two rear wheel hub motors and rotate by required rotating speed, torque.
When automobile need advance or retreat, electric machine controller carried out forward or reverse according to the instruction control motor of entire car controller by certain speed, changeed forward or turned round to reach wheel, drove automobile and advanced or retreat; When automobile need carry out straight line when quickening, electric machine controller increases the rotating speed of two rear wheel hub motors according to the signal of entire car controller feedback respectively with identical speed, drives two rear wheels and presses certain speed rev up, reaches the purpose of acceleration; When automobile need be turned; The angle signal that entire car controller sends according to steering wheel angle sensor; Calculating feeds back to electric machine controller through E-Diff, and two rear wheel hub motors of motor controller controls are rotated with different speed, reaches the purpose of turning to the left or to the right.
Behind above-mentioned double wheel hub motor in the drive system of drive electric automobile; Described electric machine controller comprise a DSP control chip and respectively with two DC/AC actuators of this DSP control chip bonded assembly; Described two DC/AC actuators all are connected with the high-tension battery group, and each DC/AC actuator all connects and drives a rear wheel hub motors.
In the drive system of drive electric automobile, described rear wheel hub motors is a permagnetic synchronous motor behind above-mentioned double wheel hub motor.Permagnetic synchronous motor has high power density, high control accuracy, is easy to realize advantages such as higher robustness, and can realizes low speed high torque, is fit to direct hub-type and drives.
In the drive system of drive electric automobile, described DC/AC actuator comprises that model is the IPM chip of PM50RSD06 behind above-mentioned double wheel hub motor, on the IPM chip, connects several isolating chips TLP559.
In the drive system of drive electric automobile, described DSP control chip is the TMS320F2812 chip behind above-mentioned double wheel hub motor, and two EV modules are arranged in this chip, and above-mentioned DC/AC actuator is connected with corresponding EV module respectively.DSP control chip TMS320F2812 is the digital signal processor that Texas Instrument produces, and it has integrated the optkmal characteristics of DSP and microcontroller.
Behind above-mentioned double wheel hub motor, in the drive system of drive electric automobile, on said DSP control chip, be connected with power circuit and electrify restoration circuit.Power circuit can make output voltage keep stable, and electrify restoration circuit can carry out reset operation to the DSP control chip.
Behind above-mentioned double wheel hub motor in the drive system of drive electric automobile; On said DSP control chip, be connected with clock circuit; Comprise crystal Y1 and two building-out capacitor C31, the C41 of 30MHz, the two ends of crystal Y1 are connected to control chip pin X1, X2 is last, and building-out capacitor C31 one end is connected on the pin X1; Building-out capacitor C41 one end is connected on the pin X2, the equal ground connection of the other end of building-out capacitor C31, C41.Clock circuit is used to control the DSP control chip and carries out an instruction, the work rhythm of control chip successively in certain instruction cycle.
Behind above-mentioned double wheel hub motor in the drive system of drive electric automobile, on said DSP control chip, be connected with and extend out the RAM memory device and extend out EEPROM.External RAM memory device is used for the state parameter of the automobile of storage sensor detection, extends out cooresponding state or the numerical value of being provided with of parametric variable that EEPROM is used to read and write memory system, and relevant failure message.
Behind above-mentioned double wheel hub motor in the drive system of drive electric automobile; On said DSP control chip, be connected with the CAN interface circuit; Comprise CAN bus driver chip SN65HVD23; Pin CANH and CANL is connected respectively on the connector and between two pins connecting resistance R131, ground connection behind series resistance R130 on the pin Rs.SN65HVD23 is applicable to the serial communication of higher communication speed, good resistance interference performance and high reliability CAN bus.
Behind above-mentioned double wheel hub motor in the drive system of drive electric automobile; On said DSP control chip, be connected with current detection module, this current detection module comprise with DSP control chip bonded assembly current filtering circuit and with current filtering circuit bonded assembly current detection circuit.The circuit filtering circuit is used for the filtering noise signal, makes circuit more stable, and current detection circuit is used to detect size of current.
Behind above-mentioned double wheel hub motor in the drive system of drive electric automobile; Also comprise being arranged on and be used to the position detecting module that detects rear wheel hub motors spinner velocity, angle signal and send to electric machine controller on each rear wheel hub motors; Position detecting module comprise absolute type encoder and with absolute type encoder bonded assembly signal conversion chip, described signal conversion chip is connected with above-mentioned DSP control chip.
Prior art is compared, and the utlity model has following advantage:
1, owing to adopt an electric machine controller to control two rear wheel hub motors simultaneously, practiced thrift device cost, the arrangement space of also having saved car load simultaneously.
2, because two rear wheel hub motors all adopt permagnetic synchronous motor, overcome the low shortcoming of traditional asynchronous machine power density, also overcome the shortcoming of brshless DC motor control accuracy difference.
3,, faster than the TMS320F2407 arithmetic speed that existing Double Motor Control device adopts, control accuracy is higher because the DSP control chip of electric machine controller adopts the TMS320F2812 chip, and this chip possesses proven technique.
Description of drawings
Fig. 1 is the structural representation of utility model.
The specific embodiment
Below be the specific embodiment of the utility model, and combine accompanying drawing that the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
As shown in Figure 1; The utility model provides the drive system of drive electric automobile behind a kind of double wheel hub motor; Comprise a high-tension battery group, entire car controller, battery management system and two rear wheel hub motors, be connected through an electric machine controller between high-tension battery group and two rear wheel hub motors; Entire car controller and electric machine controller, battery management system are respectively through the total wire joint of CAN; Be connected with steering wheel angle sensor, accelerator pedal sensor, brake pedal sensor and car speed sensor on the entire car controller; Battery management system is connected with the high-tension battery group, is used to control the high-tension battery group to the electric machine controller charge and discharge, manages information such as battery temperature, electric current, voltage simultaneously; The signal that entire car controller is carried according to steering wheel angle sensor, accelerator pedal sensor and brake pedal sensor sends instruction to electric machine controller after treatment, and electric machine controller is accepted instruction and controlled two rear wheel hub motors and rotate by required rotating speed, torque.
Specifically, steering wheel sensor adopts the MR-DA-1023 magnetic hysteresis resistor type angle sensor of FSG company, is arranged on bearing circle rotating shaft bottom, is used to detect the corner angle of bearing circle; Accelerator pedal sensor is arranged on the acceleration pedal, is used to detect the ARC Acceleration Signal of acceleration pedal; Brake pedal sensor is arranged on the brake pedal, is used to detect the speed-slackening signal of brake pedal; Car speed sensor is arranged on the trailing wheel, is used to detect the tach signal of wheel.
The intention of chaufeur is handled and judged to the signal of entire car controller receive direction dish sensor, accelerator pedal sensor, brake pedal sensor and car speed sensor, and the result after will handling again converts control command to and sends to electric machine controller.
Electric machine controller comprise a DSP control chip and respectively with two DC/AC actuators of this DSP control chip bonded assembly, two DC/AC actuators all are connected with the high-tension battery group, and each DC/AC actuator all connects and drives a rear wheel hub motors.The high-tension battery group is directly carried out charge and discharge to the DC/AC actuator, rotates by required rotating speed, torque through the corresponding rear wheel hub motors of DC/AC driver drives again.
Electric machine controller adopts the digital signal processor TMS320F2812 of Texas Instrument's production as the DSP control chip, and two EV modules are arranged in this DSP control chip, and the EV module is controlled corresponding D C/AC actuator respectively.Be connected with power circuit and electrify restoration circuit on the DSP control chip, be respectively applied for the voltage transitions of high-tension battery output is carried out reset operation for the burning voltage of DSP control chip needs with to the DSP control chip; Be connected with clock circuit on the DSP control chip; Crystal Y1 and two the building-out capacitor C31, the C41 that comprise 30MHz; The two ends of crystal Y1 are connected to control chip pin X1, X2 is last; Building-out capacitor C31 one end is connected on the pin X1, and building-out capacitor C41 one end is connected on the pin X2, the equal ground connection of the other end of building-out capacitor C31, C41; Be connected with on the DSP control chip and extend out the RAM memory device and extend out EEPROM; The state parameter of the automobile that storage sensor detects in extending out the RAM memory device; At the parametric variable and the corresponding setting numerical value that extend out EEPROM read-write memory system, and relevant failure message.In addition; On the DSP control chip, be connected with the CAN interface circuit; This circuit can be realized the communication of electric machine controller and entire car controller, can be transported to entire car controller to relevant mode of operation, and this CAN interface circuit comprises CAN bus driver chip SN65HVD23; Pin CANH and CANL is connected respectively on the connector and between two pins connecting resistance R131, ground connection behind series resistance R130 on the pin Rs.In order to make system more stable, on the DSP control chip, also be connected with current detection module, this current detection module comprise with DSP control chip bonded assembly current filtering circuit and with current filtering circuit bonded assembly current detection circuit.
The DC/AC actuator comprises that model is the IPM chip of PM50RSD06, on the IPM chip, connects several isolating chips TLP559.The IPM chip integrates device for power switching and driving circuit, and inner packet contains over voltage, excess current and trouble detect circuit such as overheated.
Rear wheel hub motors adopts permagnetic synchronous motor, and permagnetic synchronous motor has high power density, high control accuracy, is easy to realize the advantages such as control of higher robustness, and can realizes low speed high torque, is fit to direct hub-type and drives.
For the control that makes electric machine controller more accurate; Position detecting module all is installed on each rear wheel hub motors; Position detecting module is used to detect rear wheel hub motors spinner velocity, angle signal and feeds back to electric machine controller; Position detecting module comprise absolute type encoder and with absolute type encoder bonded assembly signal conversion chip, described signal conversion chip is connected with above-mentioned DSP control chip.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (10)
1. the drive system of drive electric automobile behind the double wheel hub motor; Comprise the high-tension battery group; It is characterized in that; This drive system also comprises an entire car controller, battery management system and two rear wheel hub motors, is connected through an electric machine controller between high-tension battery group and two rear wheel hub motors; Described entire car controller and electric machine controller, battery management system are respectively through the total wire joint of CAN; Be connected with steering wheel angle sensor, accelerator pedal sensor, brake pedal sensor and car speed sensor on the described entire car controller; Described battery management system is connected with the high-tension battery group, is used to control the high-tension battery group to the electric machine controller charge and discharge, manages information such as battery temperature, electric current, voltage simultaneously; The signal that described entire car controller is carried according to steering wheel angle sensor, accelerator pedal sensor and brake pedal sensor sends instruction to electric machine controller after treatment, and electric machine controller is accepted instruction and controlled two rear wheel hub motors and rotate by required rotating speed, torque.
2. the drive system of drive electric automobile behind the double wheel hub motor according to claim 1; It is characterized in that; Described electric machine controller comprise a DSP control chip and respectively with two DC/AC actuators of this DSP control chip bonded assembly; Described two DC/AC actuators all are connected with the high-tension battery group, and each DC/AC actuator all connects and drives a rear wheel hub motors.
3. the drive system of drive electric automobile is characterized in that behind the double wheel hub motor according to claim 1 and 2, and described rear wheel hub motors is a permagnetic synchronous motor.
4. the drive system of drive electric automobile is characterized in that behind the double wheel hub motor according to claim 2, and described DC/AC actuator comprises that model is the IPM chip of PM50RSD06, on the IPM chip, connects several isolating chips TLP559.
5. according to the drive system of drive electric automobile behind claim 2 or the 4 described double wheel hub motors; It is characterized in that; Described DSP control chip is the TMS320F2812 chip, and two EV modules are arranged in this chip, and above-mentioned DC/AC actuator is connected with corresponding EV module respectively.
6. according to the drive system of drive electric automobile behind claim 2 or the 4 described double wheel hub motors, it is characterized in that, on said DSP control chip, be connected with power circuit and electrify restoration circuit.
7. according to the drive system of drive electric automobile behind claim 2 or the 4 described double wheel hub motors; It is characterized in that, on said DSP control chip, be connected with clock circuit, comprise crystal Y1 and two building-out capacitor C31, the C41 of 30MHz; The two ends of crystal Y1 are connected to control chip pin X1, X2 is last; Building-out capacitor C31 one end is connected on the pin X1, and building-out capacitor C41 one end is connected on the pin X2, the equal ground connection of the other end of building-out capacitor C31, C41.
8. according to the drive system of drive electric automobile behind claim 2 or the 4 described double wheel hub motors, it is characterized in that, be connected with on the said DSP control chip and extend out the RAM memory device and extend out EEPROM; Be connected with current detection module on the said DSP control chip, this current detection module comprise with DSP control chip bonded assembly current filtering circuit and with current filtering circuit bonded assembly current detection circuit.
9. according to the drive system of drive electric automobile behind claim 2 or the 4 described double wheel hub motors; It is characterized in that; On said DSP control chip, be connected with the CAN interface circuit; Comprise CAN bus driver chip SN65HVD23, pin CANH and CANL is connected respectively on the connector and between two pins connecting resistance R131, ground connection behind series resistance R130 on the pin Rs.
10. the drive system of drive electric automobile behind the double wheel hub motor according to claim 1 and 2; It is characterized in that; Also comprise being arranged on and be used to the position detecting module that detects rear wheel hub motors spinner velocity, angle signal and send to electric machine controller on each rear wheel hub motors; Position detecting module comprise absolute type encoder and with absolute type encoder bonded assembly signal conversion chip, described signal conversion chip is connected with above-mentioned DSP control chip.
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| CN 201220126105 CN202573774U (en) | 2012-03-29 | 2012-03-29 | Driving system of double-hub motor rear-driving electric automobile |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103692927A (en) * | 2013-12-12 | 2014-04-02 | 大连天元电机股份有限公司 | Motor drive control system of electric vehicle |
| CN105291882A (en) * | 2015-12-07 | 2016-02-03 | 新西兰投资贸易中心 | Electric control system and control method thereof |
| CN108011471A (en) * | 2016-11-02 | 2018-05-08 | 秦少峰 | Direct drive double wheel hub electric system |
| CN108169673A (en) * | 2017-12-13 | 2018-06-15 | 厦门大学 | In-wheel motor driving electric vehicle experimental provision |
| CN108215941A (en) * | 2018-02-02 | 2018-06-29 | 浙江中车电车有限公司 | A kind of pure electric city bus wheel hub drive control method and system |
| CN108725182A (en) * | 2018-07-03 | 2018-11-02 | 重庆海特照明电工有限公司 | A kind of tire drives and drive system |
| CN108859733A (en) * | 2018-08-12 | 2018-11-23 | 姜春辉 | A kind of electric car, hub motor and hub motor differential speed system |
| CN109038774A (en) * | 2018-07-17 | 2018-12-18 | 北京敬科技有限公司 | A kind of drive system of electric automobile device and its storage battery power supply system |
| CN110954129A (en) * | 2019-12-19 | 2020-04-03 | 北京猎户星空科技有限公司 | Method, device, equipment and medium for determining mileage count data |
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- 2012-03-29 CN CN 201220126105 patent/CN202573774U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103692927B (en) * | 2013-12-12 | 2015-10-28 | 大连天元电机股份有限公司 | Motor drive control system of electric vehicle |
| CN103692927A (en) * | 2013-12-12 | 2014-04-02 | 大连天元电机股份有限公司 | Motor drive control system of electric vehicle |
| CN105291882A (en) * | 2015-12-07 | 2016-02-03 | 新西兰投资贸易中心 | Electric control system and control method thereof |
| CN108011471A (en) * | 2016-11-02 | 2018-05-08 | 秦少峰 | Direct drive double wheel hub electric system |
| CN108169673A (en) * | 2017-12-13 | 2018-06-15 | 厦门大学 | In-wheel motor driving electric vehicle experimental provision |
| CN108215941B (en) * | 2018-02-02 | 2024-01-30 | 浙江中车电车有限公司 | Hub driving control method and system for pure electric city bus |
| CN108215941A (en) * | 2018-02-02 | 2018-06-29 | 浙江中车电车有限公司 | A kind of pure electric city bus wheel hub drive control method and system |
| CN108725182A (en) * | 2018-07-03 | 2018-11-02 | 重庆海特照明电工有限公司 | A kind of tire drives and drive system |
| CN109038774A (en) * | 2018-07-17 | 2018-12-18 | 北京敬科技有限公司 | A kind of drive system of electric automobile device and its storage battery power supply system |
| CN109038774B (en) * | 2018-07-17 | 2019-06-25 | 广州市凯捷电源实业有限公司 | A kind of drive system of electric automobile device and its storage battery power supply system |
| CN108859733A (en) * | 2018-08-12 | 2018-11-23 | 姜春辉 | A kind of electric car, hub motor and hub motor differential speed system |
| CN108859733B (en) * | 2018-08-12 | 2024-06-28 | 姜春辉 | Electric automobile, in-wheel motor and in-wheel motor electronic differential system |
| CN110954129A (en) * | 2019-12-19 | 2020-04-03 | 北京猎户星空科技有限公司 | Method, device, equipment and medium for determining mileage count data |
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Granted publication date: 20121205 Termination date: 20140329 |